From the Richmond Enquirer, 9/12/1862, p. 1, c. 3

THE CURRENCY. – We understand that considerable traffic is
carried on in the city, and out of it, with Yankee prisoners for Federal
treasury notes, and that in many cases a premium is paid for them in Confederate
money. The ultimate object is, evidently, to benefit smugglers and blockade
runners; but its moral effect in depreciating the paper currency of the South,
to the advantage of the paper currency to the North, is a matter of the greatest
importance.